From 9af5cc2faab4f7c797e14da46f184015b5910d9d Mon Sep 17 00:00:00 2001
From: benno <benno@openbsd.org>
Date: Mon, 18 Jul 2016 21:17:32 +0000
Subject: [PATCH] add format attributes to log functions ok stsp@ claudio@
 florian@

---
 usr.sbin/ifstated/ifstated.h | 26 +++++++++++++++++---------
 1 file changed, 17 insertions(+), 9 deletions(-)

diff --git a/usr.sbin/ifstated/ifstated.h b/usr.sbin/ifstated/ifstated.h
index de32109e0ef..8eeb0b0a74f 100644
--- a/usr.sbin/ifstated/ifstated.h
+++ b/usr.sbin/ifstated/ifstated.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ifstated.h,v 1.8 2014/11/03 18:44:36 bluhm Exp $	*/
+/*	$OpenBSD: ifstated.h,v 1.9 2016/07/18 21:17:32 benno Exp $	*/
 
 /*
  * Copyright (c) 2004 Ryan McBride
@@ -138,11 +138,19 @@ void	clear_config(struct ifsd_config *);
 
 /* log.c */
 void	log_init(int);
-void	log_warn(const char *, ...);
-void	log_warnx(const char *, ...);
-void	log_info(const char *, ...);
-void	log_debug(const char *, ...);
-void	vlog(int, const char *, va_list);
-void	logit(int, const char *, ...);
-__dead void fatal(const char *);
-__dead void fatalx(const char *);
+void	log_warn(const char *, ...)
+		__attribute__((__format__ (printf, 1, 2)));
+void	log_warnx(const char *, ...)
+		__attribute__((__format__ (printf, 1, 2)));
+void	log_info(const char *, ...)
+		__attribute__((__format__ (printf, 1, 2)));
+void	log_debug(const char *, ...)
+		__attribute__((__format__ (printf, 1, 2)));
+void	vlog(int, const char *, va_list)
+		__attribute__((__format__ (printf, 2, 0)));
+void	logit(int, const char *, ...)
+		__attribute__((__format__ (printf, 2, 3)));
+void fatal(const char *) __dead
+		__attribute__((__format__ (printf, 1, 0)));
+void fatalx(const char *) __dead
+		__attribute__((__format__ (printf, 1, 0)));
-- 
2.20.1